FIRST STAGE PRODUCTION or ICHIPRO (いちプロ), is a VTuber agency established in March 2023 by REALITY Studios Inc., a Japanese company that also manages the VTuber agencies Specialite, RK Music and previously, Vebop Project which was transfered to ViviON in October 2025.[1]
History[]
2023[]
On 9 March, FIRST STAGE PRODUCTION announced the debut of the company’s first generation of talents: Amae Ten, Mushanokoji Eli, Rose Swing!, Yuragi Riu, Kamiyori Shihai, Akane and Leta.[2]
On 10 March, Amae Ten, Mushanokoji Eli, Rose Swing! and Yuragi Riu debuted.
On 11 March, Kamiyori Shihai, Akane and Leta debuted.
On 30 March, FIRST STAGE PRODUCTION announced that Yuragi Riu's activities would be suspended indefinitely.
On 31 March, FIRST STAGE PRODUCTION announced auditions looking for their second generation of talents, from 3 April to 9 April.[3]
On 3 July, FIRST STAGE PRODUCTION announced auditions looking for male talents for an English Branch, from 3 July to 31 July.[4]
On 3 September, FIRST STAGE PRODUCTION's second generation of talents was announced on a 24-hour program hosted by the first generation.
On 16 September, the second generation's female talents debuted: Ryugahama Yue, Mutogi Nanone, Yu-yu-Yura and Mochituke Nullpo.
On 17 September, the second generation's male talents debuted: Tsukigami Len, Akemi Haine, Kurosaki Taiga and Perfect Bomber.
On 29 September, FIRST STAGE PRODUCTION announced auditions looking for their third generation of talents, from 1 October to 29 October, including participating artists Rukawa Negi and Sumeragi Kohaku.[5]
On 13 October, FIRST STAGE PRODUCTION announced that Leta's activities would be suspended indefinitely.
On 2 November, FIRST STAGE PRODUCTION announced that their contract with Yuragi Riu has been terminated.
On 10 November, FIRST STAGE PRODUCTION announced that Leta would graduate on 31 December by mutual agreement.
On 30 November, FIRST STAGE PRODUCTION announced that Mushanokoji Eli would be suspending activities on all social media platforms.
2024[]
On 19 January, FIRST STAGE PRODUCTION EN announced Avallum, their first generation of talents: Gale Galleon, Cassian Floros, Lucien Lunaris, Zander Netherbrand and Rosco Graves.[6]
On 31 January, FIRST STAGE PRODUCTION announced that Mushanokoji Eli had graduated.
On 3 March, FIRST STAGE PRODUCTION's third generation of talents was announced on a 24-hour program hosted by the second generation.
On 14 April, FIRST STAGE PRODUCTION EN announced auditions looking for male talents for a second generation of talents, from 14 April to 12 May.
On 9 July, FIRST STAGE PRODUCTION announced that Akezaku Machi's activities would be suspended indefinitely.[7]
On 25 July, FIRST STAGE PRODUCTION announced that their contract with Akezaku Machi has been terminated.[8]
On 3 August, FIRST STAGE PRODUCTION announced that Amae Ten, Rose Swing!, Kamiyori Shihai, and Akane would graduate on 31 August. This announcement stated that all four remaining members informed management of their desire to graduate on the same day that they were informed that Akezaku Machi had violated his contract and would be terminated.[9][10]
On 4 September, FIRST STAGE PRODUCTION's fourth generation of talents was announced.
On 7 November, FIRST STAGE PRODUCTION EN announced Ravanis, their second generation of talents: Malim Cendari, Altus Zendoji, Ryzar Blazenfang, Nayuta Umbrage and Nix Voltare.[11]
2025[]
On 6 January, FIRST STAGE PRODUCTION announced Amanosakura Tsumugihime's graduation set for 31 January.[12]
On 17 February, FIRST STAGE PRODUCTION announced that 3rd generation talents Zashikino Waraku and Soda Cosmo are set to graduate on 16 March, the two of them agreed on a farewell stream.[13]
On 13 March, FIRST STAGE PRODUCTION EN announced auditions looking for male talents for a third generation of talents, from 13 March to 15 April.
On 2 April, FIRST STAGE PRODUCTION announced that Edgar Fleming, a 3rd generation talent, will be graduating on 30 April. At his request, the majority of his content will be made private.
On 31 May, FIRST STAGE PRODUCTION announced that their contract with Saphir The Phantom Thief has been terminated, all accounts related to the talent, would be subject of a complete erasure on 7 June.[14]
On 12 June, FIRST STAGE PRODUCTION posted a teaser announcing the lineup of their upcoming 5th generation (also known as "Sorabin" 「そらびん」).[15] The following day, the names of all the 5th generation members were announced: Ruru Rara Rily, Shikimori Kotori, Ruunell Genius, Namiyoi Kanade, Hinomiya Himari, Endoluphy☆ミ, and Colonel Mofuchu.[16] Endoluphy☆ミ, the last remaining talent from the 3rd generation, confirmed that she would be re-debuting as one of the seven talents in the 5th generation.
On 16 October, FIRST STAGE PRODUCTION EN announced Lamentus, their third generation of talents: Ashkariel, Shiki Katagami, Liron Lockheart, Caelen Strayfe, and Elias Delborne. They debuted on 25 October.[17]
On 20 November, FIRST STAGE PRODUCTION announced that Ruunell Genius, a 5th Generation talent, is ending her streaming activities on 30 November and will graduate on 31 December.[18] At the same time, it was also announced that Endoluphy☆ミ, a 3rd Generation talent who re-debuted together with the 5th Generation (Sorabin), would leave the unit on 21 December and continue as a solo talent within the agency.[19]
On 24 November, FIRST STAGE PRODUCTION announced the end of their contract with 2th Generation talent Mutogi Nanone, following the discovery that she had breached its confidentiality. Nanone's YouTube channel and her Twitter account will be the subject of erasure starting 30 November.[20]
Members[]
| R | Retired from VTubing activities |
FIRST STAGE PRODUCTION[]
1st Generation[]
| Yuragi Riu R ✗ | Leta R ✗ | Mushanokoji Eli R ✗ | Amae Ten R ✗ |
|---|---|---|---|
 |
 |
 |
 |
| Rose Swing! R ✗ | Kamiyori Shihai R ✗ | Akane R ✗ | |
 |
 |
 |
2nd Generation[]
| Ryugahama Yue | Yu-yu-Yura | Mochituke Nullpo | Tsukigami Len |
|---|---|---|---|
 |
 |
 |
 |
| Akemi Haine | Kurosaki Taiga | Perfect Bomber | Mutogi Nanone R ✗ |
 |
 |
 |
 |
3rd Generation[]
| Akezaku Machi R ✗ | BIG GUILTY AKUMA GUILTY CHAN R ✗ | Amanosakura Tsumugihime R | Zashikino Waraku R |
|---|---|---|---|
 |
 |
 |
 |
| Soda Cosmo R | Edgar Fleming R | Saphir The Phantom Thief R ✗ | |
 |
 |
 |
4th Generation[]
| Hoshikage Tetra | Nyapupu Marina | Nilim Snowmelt | Himemiya Honoka |
|---|---|---|---|
 |
 |
 |
 |
| Hakanai Ruby | Nema Filluna | Kozumi Arisa | |
 |
 |
 |
5th Generation: Sorabin[]
| Ruru Rara Rily | Shikimori Kotori | Ruunell Genius | Namiyoi Kanade |
|---|---|---|---|
 |
 |
 |
 |
| Hinomiya Himari | Endoluphy☆ミ | Colonel Mofuchu | |
 |
 |
 |
FIRST STAGE PRODUCTION EN[]
1st Generation: Avallum[]
| Gale Galleon | Cassian Floros | Lucien Lunaris | Zander Netherbrand | Rosco Graves |
|---|---|---|---|---|
|
|
|
|
|
2nd Generation: Ravanis[]
| Malim Cendari | Altus Zendoji | Ryzar Blazenfang | Nayuta Umbrage | Nix Voltare |
|---|---|---|---|---|
|
|
|
|
|
3rd Generation: Lamentus[]
| Ashkariel | Shiki Katagami | Liron Lockheart | Caelen Strayfe | Elias Delborne |
|---|---|---|---|---|
|
|
|
|
|
Media[]
FIRST STAGE PRODUCTION[]
FIRST STAGE PRODUCTION EN[]
External links[]
Media[]
- FIRST STAGE PRODUCTION - Official website
- FIRST STAGE PRODUCTION - JP YouTube channel
- FIRST STAGE PRODUCTION EN - EN YouTube channel
- @1stpro_official - JP Twitter account
- @fsp_english - EN Twitter account
- u/fsp_english - Official EN Reddit account
- r/1st_stage/ - Official subreddit
References[]
- ↑ viviON Inc.. (2025, October 22). viviON、REALITY StudiosよりVTuber事務所「Vebop Project」の事業譲受と運営移管に関するお知らせ [Press Release]. PR Times.
- ↑ REALITY Studios、VTuber事務所「FIRST STAGE PRODUCTION」を設立～デビュータレント7名の情報を公開～ [Post]. (2023, March 3). REALITY Studios Official Website.
- ↑ FIRST STAGE PRODUCTION、第2期生タレントオーディションを開催 [Post]. (2023, March 31). REALITY Studios Official Website.
- ↑ FIRST STAGE PRODUCTION、英語圏向け第1期生タレントオーディションを開催 [Post]. (2023, July 3). REALITY Studios Official Website./
- ↑ FIRST STAGE PRODUCTION、第3期生タレントオーディションを開催 [Post]. (2023, September 29). REALITY Studios Official Website.
- ↑ FIRST STAGE PRODUCTION、グローバルチーム「Avallum」がデビュー！ [Post]. (2024, January 19). REALITY Studios Official Website.
- ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2024, July 9). FIRST STAGE PRODUCTIONより、
お知らせがございます。 [Tweet]. Twitter. - ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2024, July 25). 当社所属タレントの契約解除に関するお知らせです。 [Tweet]. Twitter.
- ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2024, August 3). FIRST STAGE PRODUCTIONより、ファンの皆様へ
重要なお知らせがございます。
詳細な説明は本日23時からの、こちらの配信をご覧下さい。https://www.youtube.com/live/gNnG1X7sOA8?si=vXjYrdBLCpCb1kjz [Tweet]. Twitter. - ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2024, August 3). FIRST STAGE PRODUCTIONより、ファンの皆様へ
重要なお知らせがございます。
詳細な説明は本日23時からの、こちらの配信をご覧下さい。https://www.youtube.com/live/gNnG1X7sOA8?si=vXjYrdBLCpCb1kjz [Tweet]. Twitter. - ↑ FIRST STAGE PRODUCTION EN [@fsp_english]. (2024, November 8). 【 #Ravanis VTuber Debut Announcement】
Please welcome our 2nd generation VTuber group "Ravanis"!
Meet the members: @MalimCendari , @AltusZendoji , @RyzarBlazenfang , @NayutaUmbrage & @NixVoltare
Debut teaser: https://youtu.be/Y4lJMb8aoZE #VTuberEN #FSP_EN #MaleVTuber [Tweet]. Twitter. - ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2025, January 6). 【天ノ桜紬姫に関するお知らせ】 [Tweet]. Twitter.
- ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2025, February 17). 【爽田こすも 座敷乃笑クに関するお知らせ】 [Tweet]. Twitter.
- ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2025, May 31). FIRST STAGE PRODUCTIONより、 お知らせがございます。 [Tweet]. Twitter.
- ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2025, June 12). 2025.6.13 [Tweet]. Twitter.
- ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2025, June 13). 5th Gen Names [Tweet]. Twitter.
- ↑ FIRST STAGE PRODUCTION EN [@fsp_english]. (2025, October 16). 【#Lamentus VTuber Debut Announcement】 [Tweet]. Twitter.
- ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2025, November 20). 【ルゥ・ネル・ジーニアス卒業に関するお知らせ】 [Tweet]. Twitter.
- ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2025, November 20). 【えんどるふぃ☆ミ脱退に関するお知らせ】 [Tweet]. Twitter.
- ↑ FIRST STAGE PRODUCTION [@1stpro_official]. (2025, November 24). 「夢伽なのね」契約解除に関するお知らせ [Tweet]. Twitter.